Nymph of a masked hunter

6583.    We found this guy crawling up our bathroom wall, it doesn’t fly or jump it just seems to crawl around. We’ve searched all inches of the web and asked everyone but we cannot seem to find anything… We would really appreciate finding out what this little guy is! Oshawa, Ontario. Canada

Number 6583. This looks like a young nymph of a masked hunter (Reduvius personatus), an assassin bug (Hemiptera/Heteroptera: Reduviidae) often found indoors; Click here for an image. It is an introduced species with a cosmopolitan distribution and is reported to have a very painful bite.